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` REGISTER.

v No. 77,4o3. "Patented Ap-r. 28, 1868.

' side v HUGH M. PEINNEY, OF CAMBRIDGEPORT, MASSACHUSETTS.

Letters Parent Ivo. y77,403, and April 2s, 186s.

IMPROVEMENT IN RBeIsTsRs.

@its ,ttntnlt rtfttnh tu in time tetttrt @anni mit making pnt tf tte stmt.

TO ALL WHOM IT MAY CON-CERN:

Be it known that I, HUGH M. P HINNEY, of Cambridgeport, in the county of Middlesex, and Stute of Massa.-`

chusetts, have invented an Improved Register; and I do hereby declare that the following, taken in connection with the drawings which accompany 'andjform part of this specification, is a description of my invention suiiicient to en able those skilled in thel art ro practise it.

AThe invention relates to the construction of square or rectangular registers for hot-air pipes, ventilators, tc,

As heretofore constructed, the frame or box part of such a register, or that part in which the blades .or valves are mounted, has been east in one piece, and besides theroom thatsueh construction causes the registers to iill,in packing for transportation, it is particularly objeetionableto a register so made, that separate or spe'- cie bearing-pieces or boxe'shave to be fastened upon the-frame-for supporting the journals of the blades.`

My invention consists primarily in constructing the box-frame of a register of four plates, jointed or secured together at their corners, the box or frame made by the plates having provision for securing it to the wall-plate.

The invention also consists in-journalling the blades directly upon the box-plates, in eontradistinct-ion to mounting the journals in boxes fastened or boltedto the wells or side pieces of the box.

It also consists in inserting between un extension from the slide (which turns the blades'i'and the under face of the wall-plate, a. spiral spring, which bears upon the slide with sui'cient stress to hold the blades in any position more cr loss open. l

The invention further consists in combining with the slide a mover, made intregral or in one piece therewith. The drawings represent a register embodying' my improvements, A showinga cross-section, and B an under iew of the same, u.nd C an end view. a denotes the wall or Hoor-plate, having at its rear or under surface the box-frame b, to which the valveblades c are connected. This frame bis made up of four separate plates, d, e,f, g, which have mitre or dove-tail ends, as seen at z, so that the plates may be fitted and jointed together to form the square or rectangular frame.

The two opposite plates d y have cars or projections, t', for reception of the Shanks of screws k, by which the,

frame is screwed to the plate a, the joints at the connecting-ends of eachtwo adjacent plates being so formed that the connection ofthe plates dgtothe plate a secures the four plates, d, ,f,g, together as well as to'the plate a. v

' This cnpabilityot division of the frame enables me to hang the journal-pins'm of the blades directly in journal-holes n made in two4 opposite frame-plates, as seen at C, obviatingthe necessity of applying bearingpieces to the frame. i

On the inner side of one ond of each blade c, on one side of each journal thereof, is a projection, o, from which extends a pin, p, into a slot, q, in a slide, r, this slide traversing on Ways or projections s, cast on the inner side of one of the frame-plates. On the upperl edge of the slide isthe piece t, projecting through an oblong slot, .'zt, inthe plate a, movement of this piece to and fro effecting the opening and closing of the `register, as is readily understood.`

Just beneath the plate a the slide r has an extension, v, and between this extension and the plate afpreferably let into a recess sunk in the plate)is a spiral spring. w, the stress of which upon the extension v holds the blades stntionaryin any position within their limit of motion.

The slide 1' is made in one piece with the mover t, by which itis operated, the mover extending up (as a projection from the slide) through the slot u, and traversing in said slot.

I claim thc sectional frame'b, made in parts connected together and to thc register-plate a, substantially as described. l y I also claim, in combination with thevslide r, the spring w, inserted beneath and bearing'ngainst the plate a and against an extension, v, from the slide., substantially as sot forth.

HUGH" M. PIIINNEY. Witnesses:

FRANCIS GoULD. 

